Aleko has the worst products I have ever purchased in any category, and they pushed me around between the company and the retailer until it was too late to return the product. Then they asked me to make complicated technical fixes to the circuit board of the heater when it wouldn't work. The sauna came incomplete and with broken parts. The heater wouldn't work at all. I have now paid for FOUR electrician visits. Aleko finally replaced the heater, and now I'm getting a new error that does not seem to be resolvable. I am considering scrapping the whole thing and starting over, even though I am now more than $5k in the hole. I have never been so frustrated with a product or company. Do NOT buy their Toule heater by itself -- this is the cause of half the trouble. Finally, I had to threaten to sue them before they replaced the first heater. Stay away at all costs.